116 



Turner, H[erbert] H[all]. Note on 

 the condition for llie passage of the 

 earth through the plane of Saturn's 

 ring London, Mon. Not. R. Astr. Soc, 

 68, 1908, (460-464). [6560]. 13971 



Note on the period of 



variation of Barnard's variable nebula 

 in Andromeda. London, Mon. Not. R. 

 Astr. Soc, 68, 1908, (481-482). [7800]. 



13972 



■ Note to Father Stein's 



paper. London, Mon. Not. R. Astr. 

 Soc, 68, 1908, (492-494). [7600]. 



13973 



An empirical law of astro- 

 nomical refraction. London, Mon. Not. 

 R. Astr. Soc, 68, 1908, (496-510). 

 [0210]. 13974 



Note on " The spanner." 



Captain Gadsden's artificial horizon for 

 sextants. London, Mon. Not. R. Astr. 

 Soc, 68, 1908, (535, with pL). [2090]. 



13975 



An example of Piofessor 



Xarl Pearson's calculation of correlation 

 in the case of the periodic inequalities 

 of long- period variables. London, 

 Mon. Not. R. Astr. Soc, 68, 1908, (544- 

 560, 677). [7600]. 13976 



Note on the period of S 



Serpentis. London, Mon. Not. R. Astr. 

 Soc, 68, 1908, (560-563). [7600]. 



13977 



Further note on the 



position of the sun's axis of rotation, as 

 deduced from Greenwich sun-spot 

 measures, 1874-1885. Papers of the 

 I.U.S.R. computing bureau. No. II. 

 I,ondon, Mon. Not. R. Astr. Soc, 68, 

 1908, (609-613). [4030]. 13978 



■ On possible periodic in- 



■equalities in the epoch of the sun-spot 

 variation. Papers of the I.U.S.R. com- 

 puting bureau. No. III. London, 

 Mon. "Not. R. Astr. Soc, 68, 1908, (656- 

 €62). [4100]. 13979 



Note on the number of 



faint stars with large proper motions. 

 London, Mon. Not. R. Astr. Soc, 69, 

 1909,(57-60). [7060]. 13980 



On the diminution of light 



in its passage through interstellar space. 

 London, Mon. Not. R. Astr. Soc. 69, 

 1909,(61-71). [1830]. 13981 



■ Ilalley's comet, an evening 



discourse to the British Association, at 

 their meeting at Dublin, on Friday, 



September 4, 1908. Oxford (Clarendon), 

 1908, (32, with pis.). 23 cm. Is. net. 

 [6600]. 13982 



Turner, H[erbert] H[all]. On a method 

 of improving the constants of the 

 plates for the asti'Ographic catalogue. 

 London, Rep. Brit. Ass., 1907, 1908, 

 (465-466). [7040]. 13983 



On the determination of 



periodicit}' from a broken series of 

 maxima. London, Rep. Brit. Ass., 

 1907, 1908, (466-467). [7600]. 13984 



On the relation between 



intensity of light, time of exposure and 

 IDhotographic action. (Rep. Brit. Ass. 

 1908.) Observatorv, London, 31, 1908, 

 (368-369). [2500].' 13985 



Udden, J[ohan] A[ugust]. Sunspot 

 zones. Science, New York, N.Y., (N. 

 Ser.), 25, 1907, (827-828). [4070]. 



13986 



Upham, Warren. Geological time. 

 Pop. Astr., Northfield, Minn., 14, 1906, 

 (264-276). [0000]. 13987 



Valentiner, \V[ilhelm]. Jahresbericlit 

 liber die Tiitigkeit des Instituts wahreiid 

 des Kalenderjahres 1906. Heidelberg, 

 Mitt. Steriiw., 10, 1907, (144-158). 

 [0020]. 13988 



Ventosa, V. Total solar eclipse 

 viewed at Burgos. Pop. Astr., Nortli- 

 field, Minn., 14, 1906, (151-153, with 

 illustr.). [4210]. 13989 



Diametre de Venus. 



Nonvelle methode pour le determiner. 

 Bui. astr., Paris, 25, 1908, (289-292). 

 [5720]. 13990 



Ventxiri, Adolfo. Terza campagna 

 gravimetrica in Sicilia nel 1905. iionia. 

 Rend. xVcc Lincei, (Ser. 5), 2, 2° sem., 

 1907,(91-105). [5100]. 13991 



Very, F[rank] W. Tlie temperature 

 of tiie moon. Astroph. J., Chicago, 111., 

 24, 1906, (351-354). [4850]. 13992 



Viaro, B[ortolo]. Osservazioni di 

 Ceres, Pallas e Vesta. Astr. Nachr., 

 Kiel, 178, 1908, (361-362). [5910]. 



13993 



• Coordinate del centro della 



luna concluse da osservazioni dei lemlii 

 e del Miisting A al Piccolo Meridiano di 

 Arcetri. Astr. Nachr., Kiel, 178, 1908, 

 (3(53-366). [4810]. 13994 



Posi/.ioni di 93 stelle fatte 



al Piccolo Meridiano di Arcetri. Firenze, 

 Publ)l .R. Osser. Arcetri, 24 ,1907, (1-35). 

 [7020]. 13995 



